Hand tacking-machine



(No model. 2 Shets-Bheet 1..

HAND T'A'OKING MACHINE. No. 262,969. Patented -Aug. 22, 1882 ivfl'l'esses. l 2% 1%M aw haw n. PETERS. Photo-Lithograph". Wlfllinglau 0.0.

(No Model.) 2' Shets-Sheet 2.

E. MERRIT'T. HAND TAG-KING MACHINE, No. 262,969. v Patent-ed Aug. 22,1882..

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UNITED STATES PATE T OFFICE.

EDWARD MERRITT, OF BROOKTON, MASSACHUSETTS:

HAND TACKlNG-MACHINE.

SPECIFICATION forming part of Letters Patent No. 262,969, dated August22, 1882.

i Application filed December 27, 1881. (No model.)

nails in lasting boots and shoes, and my improved machine is used inconnection with any of the usual lastingmachines that stretch the upperand hold itin position on the last.

Heretofore headed nails have been driven by hand; and the object of mypresent invention is to produce a hand tacking-machine for feeding anddriving headed nails, as will hereinafter be more fully shown anddescribed, reference being bad to the accompanying drawings, on which-Figure 1 represents a front elevation of the machine. Fig. 2 representsa longitudinal section of the same. Fig. 3 represents a vertical sectionon the line A B, shown in Fig. 1. Fig. 4 represents a cross-section ofthe nail-receptacle on the line C D, shown in Fig. 1. Fig. 5 representsa side view of the throat as seen from X in Fig. 1 and Fig. 6 representsa crosssection on the line E F in Fig. 5, showing portion of theraceways and nail-separator device.

Similar letters refer to similar partswherever they occur on thedifferent parts of the drawings.

a is the hollow frame or handle, in which the plunger 11 is movable upand down-upward by means of the coiled spring 0 and downward by exertinga blow on the head b of the plunger b.

To the lower end of the plunger 1) is secured the driver b, which ismovable up and down in the throat-piece d, as shown in Fig. 2.

A mallet is used by which to give a blow on the head I) of the plunger12 for the purpose of driving the nail, and I prefer to use, inconnection with my improved machine, a mallet the construction of whichI desire to claim in a subsequent application for Letters Patent.

61 is the throat in the lower end of the throatpiece d, through whichthe nail is driven when a blowis given on the head I) of the plungerpiece d, as shown in Fig. 2. l The yielding projectiou f serves toprevent the nail conducted into the throat from dropping out untildriven by the descent of the driver-bar b.

a is a bracket cast in one piece with the frame or handle a, whichbracket serves as a support for the raceways g g and the nail-receptacleh, which are secured to thesaid bracket by means of suitable set-screwsor equivalent devices.

h is the rotary hopper plate or disk, having hoppers or scoops h h onits inner side, which, during therotation of said hopper-disk, take upthe nails from the nail-receptacle h and deliver them upon the apron h,from which they fall between'the upper ends of the raceways g g. Thedisk h is provided on its outer periphery with teeth h h, as shown, andan intermittent rotary motion is imparted to the hopper-disk h by meansof the rocker-lever i, hung at i, and provided in one end with aslothole, z', embracing the set-screw b on the plunger b, and in itsotherendwith a pawl, 2", hinged to the lever t'at i and provided with aspring, '5 for automatically holding the pawl 45 against the teethh, andby these means the pawl '5' is caused to act upon the teeth 7& to turnthe disk 72/ a partial revolution around its axis during the upwardstroke of the plunger 11.

g is the cover for the raceways g g, as usual.

To one side of the frame a is hinged at k a lever, it, having an inwardprojection, k, as shown in Fig. 3. A spring, 70', secured in its upperend to the frame a, presses upon the lower ,end of the lever It, so asto hold the latter automatically in the position shown in Fig. 3 whenthe plunger b is at the upper end of its stroke.

70 is a slot-hole in the lower end of the le vcr 7a, through whichextends the stud l, se

ward end, as shown in Fig. 6. The bar at is time the plunger 1) isforced down by a blow made adjustable in its connection with theWedge-separator l by means of the set-screw a passing through slot-holeZ in the rear end of the separator Z, as shown in said Fig. 6.

Within the side channel, d, of the throat d is located a spring, 0,which is normally held against the lower end of the raceways gg, and ismoved away from it by the inclined bar it forcing said spring back toallow the separator l to take a nail from the end of the raceways and todrop it into the throat d, where the nail falls against the spring-lipf,and remains in such a position until the descent of the driver-bar I),caused by a blow by the mallet on the head 11 of the plunger b.

To the rear end of the separator l is further secured a hub, 19, towhich is secured the nailspreader bar 19 by means of the set-screw 12".The barpis made wedge-shaped in its forward end, 19', where it passesunder a spring, q, secured to the top of the raccways g g.

The extreme lower free end of the spring g has a lip, q, the object ofwhich is to act upon the heads of the nails to spread them apart by theaction of the spring q and lip q, to allow the last nail nearest thethroat-channel d to be taken easily from the raceway by the separator l.The wedge-shaped end 11' of the reciprocating bar 19 comes in contactwith the spring q when the separator l is at the rear end of its stroke,and raises said spring and its lip q sufficiently to allow a nail toproceed downward against the spring-gage 0, and during the forwardmotion of the separator l the spring q is released from the wedge 19'and springs down with its lip q between the heads of the last two nails,causing them to be spread apart for the purpose set forth.

The machine is operated as follows: The

frame at is held by the operator grasping it in his hand and guidedaccording to where the nails are to be driven. The plunger 1), to whichthe driver-bar b is secured, is normally held up by the influence of thespring 0. At the from the mallet on the head I) a tack is driven throughthe throat d into the shoe, and at the same time the wedge-separator lis forced back by the lower end of the plunger 1) acting on theprojection 7c of the lever 16, allowing a nail to run down the end ofthe'raceways g g against the spring-gage 0, which is during this timeautomatically sprung against the ends of the raceways. During the upwardmotion of the plunger the spring-gage 0 is forced back by the wedge orincline a on the rod 12 being moved forward, thus allowing thewedge-separator l to force the nail from the end of the raceways g g andto automatically drop it into the throat d against the spring-lip f,where it remains until the next descent of the plunger b and itsdriver-bar b, and so on.

During the operation of the machine the nails are automatically takenfrom the nailreceptacle h and delivered properly to the raceways 9 g inthe manner and by the means as hereinabove described.

Having thus fully described the nature, construction, and operation ofmy invention, I wish to secure by Letters Patent, and claim- 1. In ahand tacking-machine, in combination with the frame 0., its plunger I),spring 0, and driver-bar I), the throat (I d, spring-die ff, spring-gage0, and the inclined wedge a 77/, and inclined lever It for operatingsaid spring-gage, as set forth.

2. In a hand tacking-machine, in combination-with the frame a, itsplunger b, spring 0, and driver-bar I), throat d d, and spring-die ff,inclined bar a n, and wedge-separator l, the raceways g g,spring-spreader q q, and wedge 19 19' for operating it, as set forth.

In testimony whereof I have aftix'ed my signature in presence of twowitnesses.

ED WARD MERRITT.

Witnesses:

ALBAN ANDREN, HENRY GHADBOURN.

